help processing reversal b&w

hello friend i m processing super8 reversal tri x with d 19 for 6 minutes how manual and all people describe...

when i achieve not too light images the problem is always the first developer??


i use permanganate bleach 4/g A for liter and B sodium bisulphate 35g/l for 5 minutes (in distilled water)

the clearing bath is metabisulphite 30 grams /liter for 2 minutes


many thanks for help

If "not too light images" means that the high lights have filled in and the contrast is too high; then in reversal processing, this is corrected by more development in the first developer or the bleach bath is too weak.